If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.

TIG Welding Alum base metal wants to spread away from its self

I keep trying to weld alum and the base metal wants to spread away from its self, Im using ER4043 0.030 alum mig wire and 1/16" er4043, with orange tungsten, The machine is the miller diversion 180, i dont know whats going on, Any help is apperciated, thank you

TIG Welding Alum base metal wants to spread away from its self

Are you sure about 3/16 tungsten? if so try 1/16. Be sure aluminum is spotless clean. Wipe with acetone, after sanding. Are you inside with no fans or air blowing? You are using argon 100%? Try some 1/16 filler.

More info as far as metal thickness would help. But, what I've learned about welding alum is to apply more heat off the get go and back off if needed. If you ease into it a lot of times it'll fold away like your talking about. 1/16" is small tunsten unless your welding thin gauge alum. , you'll be going through it quickly.